<!DOCTYPE html>
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<head>
    <meta charset="UTF-8">
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        let names = ['rose','jennie','lisa','jisoo']
        const res1 = names.forEach(function(item){
            return  console.log(item)
        })
        //箭头函数：() => {}
        const res2 = names.forEach((item) => {console.log(item)})
    </script>
</body>
</html>